二氧化碳储罐压力不能低于1.4MPa工作，二氧化碳液体在低于0.7MPa时会形成干冰，一旦形成干冰，储罐就很麻烦了，里面二氧化碳液体凝结成冰，将很难解决。

The pressure of the carbon dioxide storage tank cannot be lower than 1.4MPa. When the pressure of the carbon dioxide liquid is lower than 0.7MPa, dry ice will form. Once dry ice forms, the storage tank will be very troublesome, and the carbon dioxide liquid inside will condense into ice, which will be difficult to solve.

你所说的是二氧化碳在使用过程中压力不断降低，为了防止不断降低压力，你现在需要增加一套二氧化碳子增压系统，此系统构成有两个部分；

What you are talking about is that the pressure of carbon dioxide continuously decreases during use. In order to prevent continuous pressure reduction, you now need to add a set of carbon dioxide sub pressurization system, which consists of two parts;

1.自增压器；可以采用空温式汽化器，汽化量30立方的就可以。

1. Self booster; An air temperature vaporizer can be used, with a vaporization capacity of 30 cubic meters.

2.增压阀；在增压器气体出口安装一个增压阀。

2. Boosting valve; Install a booster valve at the gas outlet of the booster.

3.压力表

3. Pressure gauge

4.阀

4. Safety valve

连接方式是；由进液管路或者出液管路连接一根管，连接外置的增压器，再依次连接以上的部件，终的阀之后的出气管，也叫回气管，连接储罐的放空管上面，这样就能解决压力不够的问题。

What is the connection method; Connect a pipe from the inlet or outlet pipeline to the external booster, and then connect the above components in sequence. After the final safety valve, the outlet pipe, also known as the return pipe, is connected to the vent pipe of the storage tank. This can solve the problem of insufficient pressure.

另外，希望你考虑检查一下压力表是不是已经坏了。

Also, I hope you first consider checking if the pressure gauge is already broken.

液态二氧化碳是怎么增压的:二氧化碳被加压什么意思？

How is liquid carbon dioxide pressurized: What does it mean when carbon dioxide is pressurized?

液态二氧化碳是怎么增压的:液态二氧化碳灭火器加压喷出液态二氧化碳能灭火的原理是

How is liquid carbon dioxide pressurized: The principle of liquid carbon dioxide fire extinguishers that can extinguish fires by pressurizing and spraying liquid carbon dioxide is

（1）二氧化碳密度比空气大，所以覆盖在可燃物表面隔绝了空气；二是常温下为气态，易挥发，不污染物体；

(1) Carbon dioxide has a higher density than air, so it covers the surface of combustible materials and isolates the air; Secondly, it is in a gaseous state at room temperature, easily volatile, and does not pollute objects;

（2）二氧化碳既不能燃烧也不支持燃烧，且密度比空气大，所以覆盖在可燃物表面隔绝了空气；

(2) Carbon dioxide neither burns nor supports combustion, and its density is higher than air, so it covers the surface of combustible materials and isolates the air;

（3）此灭火器适合扑灭油类火灾，档案失火等．

(3) This fire extinguisher is suitable for extinguishing oil fires, file fires, etc

故答案为：（1）二氧化碳密度比空气大，所以覆盖在可燃物表面隔绝了空气；二是常温下为气态，易挥发，不污染物体；

The answer is: (1) Carbon dioxide has a higher density than air, so it covers the surface of combustible materials and isolates the air; Secondly, it is in a gaseous state at room temperature, easily volatile, and does not pollute objects;

（2）二氧化碳既不能燃烧也不支持燃烧，且密度比空气大，所以覆盖在可燃物表面隔绝了空气；

(2) Carbon dioxide neither burns nor supports combustion, and its density is higher than air, so it covers the surface of combustible materials and isolates the air;

（3）油类火灾，档案室．

(3) Oil fires, archives